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Background: Routine colonoscopy was traditionally recommended after acute diverticulitis to exclude coexistent malignancy. Improved CT imaging may make routine colonoscopy less required over time but most guidelines still recommend it. The aim of this review was to assess the role of colonoscopy in patients with CT-proven acute diverticulitis., Methods: PubMed and Embase were searched for studies reporting the prevalence of advanced colorectal neoplasia (ACN) or colorectal carcinoma in patients who underwent colonoscopy within 1 year after CT-proven left-sided acute diverticulitis. The prevalence was pooled using a random-effects model and, if possible, compared with that among asymptomatic controls., Results: Seventeen studies with 3296 patients were included. The pooled prevalence of ACN was 6·9 (95 per cent c.i. 5·0 to 9·4) per cent and that of colorectal carcinoma was 2·1 (1·5 to 3·1) per cent. Only two studies reported a comparison with asymptomatic controls, showing comparable risks (risk ratio 1·80, 95 per cent c.i. 0·66 to 4·96). In subgroup analysis of patients with uncomplicated acute diverticulitis, the prevalence of colorectal carcinoma was only 0·5 (0·2 to 1·2) per cent., Conclusion: Routine colonoscopy may be omitted in patients with uncomplicated diverticulitis if CT imaging is otherwise clear. Patients with complicated disease or ongoing symptoms should undergo colonoscopy., (© 2019 The Authors. BJS published by John Wiley & Sons Ltd on behalf of BJS Society Ltd.)

Background: The shift from routine antibiotics towards omitting antibiotics for uncomplicated acute diverticulitis opens up the possibility for outpatient instead of inpatient treatment, potentially reducing the burden of one of the most common gastrointestinal diseases in the Western world., Purpose: Assessing the safety and cost savings of outpatient treatment in acute colonic diverticulitis., Methods: PubMed and EMBASE were searched for studies on outpatient treatment of colonic diverticulitis, confirmed with computed tomography or ultrasound. Outcomes were readmission rate, need for emergency surgery or percutaneous abscess drainage, and healthcare costs., Results: A total of 19 studies with 2303 outpatient treated patients were included. These studies predominantly excluded patients with comorbidity or immunosuppression, inability to tolerate oral intake, or lack of an adequate social network. The pooled incidence rate of readmission for outpatient treatment was 7% (95%CI 6-9%, I 2 48%). Only 0.2% (2/1288) of patients underwent emergency surgery, and 0.2% (2/1082) of patients underwent percutaneous abscess drainage. Only two studies compared readmission rates outpatients that had similar characteristics as a control group of inpatients; 4.5% (3/66) and 6.3% (2/32) readmissions in outpatient groups versus 6.1% (4/66) and 0.0% (0/44) readmissions in inpatient groups (p = 0.619 and p = 0.174, respectively). Average healthcare cost savings for outpatient compared with inpatient treatment ranged between 42 and 82%., Conclusion: Outpatient treatment of uncomplicated diverticulitis resulted in low readmission rates and very low rates of complications. Furthermore, healthcare cost savings were substantial. Therefore, outpatient treatment of uncomplicated diverticulitis seems to be a safe option for most patients.

Aim The study aimed to investigate current management strategies for left-sided diverticulitis and compare them with current international guidelines. Differences between surgeons and gastroenterologists and between gastrointestinal and nongastrointestinal surgeons were assessed. Method A web-based survey of treatment options for uncomplicated and complicated diverticulitis was carried out among surgeons and gastroenterologists in the Netherlands. Only surgeons were asked about surgical strategy. Results A total of 292 surgeons and 87 gastroenterologists responded, representing 92% of all surgical and 46% of all gastroenterology departments. Ninety per cent of respondents treated mild diverticulitis without antibiotics. About one-fifth (18% gastroenterologists; 19% surgeons) regarded a CT scan as mandatory in the initial assessment. Most surgeons and gastroenterologists used some form of bowel rest, would consider outpatient treatment and would perform a colonoscopy on follow up. For Hinchey Stage 3, 78% of surgeons would consider resection and primary anastomosis and laparoscopic lavage was viewed as a valid alternative by 30% of gastrointestinal and 2% of nongastrointestinal surgeons. For Hinchey stage 4, 46% of gastrointestinal and 72% of nongastrointestinal surgeons would always perform Hartmann's procedure. Conclusion The treatment of diverticulitis in the Netherlands shows major differences when compared with guidelines for all stages of disease. [ABSTRACT FROM AUTHOR]